import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;

import java.util.List;

public class RedisDemoString {

    public static void test1(Jedis jedis) {
        System.out.println("mset 和 mget");
        //MGET 和 MSET 是用于批量操作键值对的命令，能够有效提升操作效率
        jedis.flushAll();

        jedis.mset("key1","111","key2","222","key3","333");
        List<String> values = jedis.mget("key1", "key2","key100", "key3");
        System.out.println("values = " + values);
    }

    public static void test2(Jedis jedis) {
        System.out.println("getrange 和 setrange");
        jedis.flushAll();

        jedis.set("key","zxcvbnm");
        String result = jedis.getrange("key", 0, 1);
        System.out.println("result = " + result);

        jedis.setrange("key", 0, "ab");
        String value = jedis.get("key");
        System.out.println("value = " + value);
    }

    public static void test3(Jedis jedis) {
        System.out.println("append");
        jedis.flushAll();

        jedis.set("key","zxcvbnm");
        jedis.append("key","asdfghjk");
        String value = jedis.get("key");
        System.out.println("value = " + value);
    }

    public static void test4(Jedis jedis) {
        System.out.println("incr 和 decr");
        jedis.flushAll();
        jedis.set("key","100");
        long result = jedis.incr("key");
        System.out.println("result = " + result);
        String value = jedis.get("key");
        System.out.println("value = " + value);
        result = jedis.decr("key");
        System.out.println("result = " + result);
        value = jedis.get("key");
        System.out.println("value = " + value);
    }

    public static void main(String[] args) {
        JedisPool jedisPool = new JedisPool("tcp://127.0.0.1:8888");

        try (Jedis jedis = jedisPool.getResource()) {
//            test1(jedis);
//            test2(jedis);
//            test3(jedis);
            test4(jedis);
        }
    }
}
